Apple has yet to reveal just how many iPhone 4S units it sold during the fourth quarter of 2011 but some new info has just been revealed that could shed some light on that number. Business Insider reports that according to Verizon's CFO Fran Shammo, the wireless carrier sold 4.2 million of Apple's smartphone during the October-December 2011 time period. The story did not say how many of those phones were from the iPhone 4S and how many were for the older iPhone 4.

That number compares well to the 2 million iPhones that Verizon said it sold during the third quarter of 2011. Remember that the iPhone is now available on three national wireless carriers now; Verizon, AT&T and Sprint. We can certainly expect to hear from those two companies in the days to come about their fourth quarter 2011 iPhone sales.

Apple itself will give the final word on iPhone 4S sales when it reveals its latest quarterly financial numbers to the public and investors on January 24. It will also likely reveal sales of its iPad tablet as well, where we will see if sales have been at all affected by the "millions" of Kindle Fire tablets that Amazon sold during the holiday period.